So to that [religion of Allah] invite, [O Muhammad], and remain on (42:15)

Almuntakhab Fi Tafsir Alquran Alkarim

Therefore, present them with inducements to entertain the thoughts of Faith and practical Divinity; and cling to the discourse as you have been commanded, and do not yield to their fruitless desires, and say to them: I have given credence to all the Books Allah has sent down and in all of them do I believe, and I have been commanded to administer right and justice between you. Allah is our Creator and your Creator. We are accountable for our deeds and you are answerable for yours, no proposition does either of us advance to influence the mind of the other nor is there between us a contest of emulation; in one assembly shall Allah bring us together; He is the end and the purpose for which all of us are destined

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(42:15) (This being so, O Muhammad), call people to the same religion and be steadfast about it as you were commanded, and do not follow their desires, *26 and say (to them): 'I believe in the Book Allah has sent down. *27 I have been commanded to establish justice among you. *28 Allah is our Lord and your Lord. We have our deeds and you have your deeds. *29 There is no contention between us and you. *30 Allah will bring us all together. To Him all are destined to return.'

So to that [religion of Allah] invite, [O Muhammad], and remain on meaning

*26) That is, "Do not make any change nor effect any increase or decrease in this religion only to please them. Do not resort to any compromises with the misguided people on the principle of "give and take": Do not make any room in the Religion for their whims, prejudices and practices of ignorance in the hope that they would embrace Islam. Let the one who wants to accept, accept the original, pure Religion of God, as sent down by Him, straight forwardly; otherwise let him go and enter any hell that he chooses for himself. The Religion of God cannot be changed for the sake of the people; if the people are desirous of their own wellbeing and true success, Iet them change their ways and mould themselves according to it. "
*27) In other words, "I am not like those schismatic people who believe in some Books sent down by God and disbelieve in others; I believe in every Book sent down by Him. "
*28) This pithy sentence has several meanings:
(1) "I have been appointed to discard the schisms and adopt true impartiality: I do not like to harbour prejudice in favour of one and against the other schism: I have one and the same kind of relationship with all human beings, and it is the relationship of justice and equity. I am a companion and supporter of everyone who follows the truth, whether he is an utter stranger for me, and an opponent of everyone who follows falsehood, whether he is a neighbour or a close kinsman.
(2) `There is no place of distinction for anybody in the system of truth, which I have, been appointed to present before you. It honours everyone equally. It does not contain separate sets of the rights for the kindred and the stranger, the big and the small, the poor and the rich, the noble and the humble. Whatever is good in it is good for everyone; and whatever is sinful and unlawful and criminal in it is sinful, unlawful and criminal for everybody. In its just system, there is no exception oven for my own self. "
(3) "I have been appointed to establish justice in the world. I have been entrusted with the mission of doing justice between the people and should put an end to their excesses and injustice, which are prevalent in your society." Besides, there is a fourth meaning also of this sentence, which remained hidden in Makkah life but became clear after emigration to Madinah, and it was: "I am a judge appointed by God: I am responsible to do justice between you. "
*29) That is, "Each one of us is himself responsible and accountable for his deeds. If you do good, you will yourself profit by its good results, and not we. If we do evil, we ourself shall bear all its evil consequences and not you. The same thing has been stated in AI-Baqarah: 139, Yunus: 41, Hud: 35, and Al-Qasas: 55 above.
*30) That is, "We have done our best in conveying to you the message in a rational way. Now there is no use wrangling and disputing; therefore, even if you try to have a dispute with us, we have no desire to join in."
 

So to that [religion of Allah] invite, [O Muhammad], and remain on meaning in Urdu

چونکہ یہ حالت پیدا ہو چکی ہے اس لیے اے محمدؐ، اب تم اُسی دین کی طرف دعوت دو، اور جس طرح تمہیں حکم دیا گیا ہے اُس پر مضبوطی کے ساتھ قائم ہو جاؤ، اور اِن لوگو ں کی خواہشات کا اتباع نہ کرو، اور اِن سے کہہ دو کہ: "اللہ نے جو کتاب بھی نازل کی ہے میں اُس پر ایمان لایا مجھے حکم دیا گیا ہے کہ میں تمہارے درمیان انصاف کروں اللہ ہی ہمارا رب بھی ہے اور تمہارا رب بھی ہمارے اعمال ہمارے لیے ہیں اور تمہارے اعمال تمہارے لیے ہمارے اور تمہارے درمیان کوئی جھگڑا نہیں اللہ ایک روز ہم سب کو جمع کرے گا اور اُسی کی طرف سب کو جانا ہے"