And they were not commanded except to worship Allah, [being] sincere to (98:5)

Almuntakhab Fi Tafsir Alquran Alkarim

Yet they have been commanded to worship no one but Allah and Him alone to revere, and to be true exclusively to the Faith and renounce idolatry, to impel themselves to freedom from dissimulation and to be sincere and to observe prayers and pay alms- Such is the religion approved by Allah and its path leads mankind to wisdom and piety, and induces them to discharge the duties naturally owed to Him

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

(98:5) Yet all that they had been commanded was that they serve Allah, with utter sincerity, devoting themselves exclusively to Him, and that they establish Prayer and pay Zakah. That is the Right Faith. *7

And they were not commanded except to worship Allah, [being] sincere to meaning

*7) That is, the message of the same religion, which now the Prophet Muhammad (upon whom be Allah's peace and blessings) is preaching, had been given to the people of the Book by the Prophets who came to them and by the Books which were sent among them; they had not ban enjoined any of the false belief aad wicked deeds which they adopted afterwards and created different sects. Right and correct religion has always been the same: that Allah alone should be served and worshipped exclusively, none else be joined with Him in worship, man should become worshipper of One Allah alone and obedient to His Command only, should establish the salat and pay the zakat. (For further explanation, see E. N. 19 of Al-A`raf; E.N.'s: 108,109 of Yunus, E.N.'s 43 to 47 of Ar-Rum; E.N.'s 3, 4 of Az-Zumar) . Some commentators have taken the words din al-qayyimah in this verse in the meaning of din al-millat al-qayyimah: "Religion of the righteous community". Some others have taken qayyimah 'in the superlative sense and understood it in the same meaning as we have adopted in our translation.
 

And they were not commanded except to worship Allah, [being] sincere to meaning in Urdu

اور اُن کو اِس کے سوا کوئی علم نہیں دیا گیا تھا کہ اللہ کی بندگی کریں اپنے دین کو اُس کے لیے خالص کر کے، بالکل یکسو ہو کر، اور نماز قائم کریں اور زکوٰۃ دیں یہی نہایت صحیح و درست دین ہے