And Moses said, "If you should disbelieve, you and whoever is on (14:8)

Almuntakhab Fi Tafsir Alquran Alkarim

And Mussa added: should you be ungrateful and, together with all those domiciled on earth, you be inclined to disobedience, then you must realize that Allah is Ghaniyun (Absolute and Independent) and Hamidun (extolled are His glorious attributes)

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

(14:8) And Moses said, "If you prove thankless, you and all the dwellers of the earth know that Allah does not stand in need of any of you, for He is All Sufficient and worthy of all praise by Himself." *13

And Moses said, "If you should disbelieve, you and whoever is on meaning

*13) It should be noted that a reference to Prophet Moses and his people has been made here to warn the people of Makkah of the consequences of their ingratitude towards this favour of Allah that He had raised Prophet Muhammad (Allah's peace be upon him) from among them. This was a timely warning, for at that time they were showing ingratitude by rejecting that Message. They were, therefore, warned to learn a lesson from the miserable condition of the Israelites, which was the result of their ingratitude to and rebellion against Allah's favours.
As the Quraish themselves could see the consequences of that rebellious attitude of the Israelites, they were, so to say, asked this question: "Do you also desire to meet with the same consequences by showing ingratitude towards the Message. which is a great favour to you?"
Obviously, the great favour which was shown to the Quraish was that Muhammad (Allah's peace be upon him) was raised from among them with that Message about which he assured them over and over again: "Accept this Message of mine: all the Arabs and the non-Arabs will surrender and submit to you?"
 

And Moses said, "If you should disbelieve, you and whoever is on meaning in Urdu

اور موسیٰؑ نے کہا کہ "اگر تم کفر کرو اور زمین کے سارے رہنے والے بھی کافر ہو جائیں تو اللہ بے نیاز اور اپنی ذات میں آپ محمود ہے"