The Quranic Text & Ali’s Version:
أَوَلَمْ
يَكْفِهِمْ
أَنَّا أَنزَلْنَا
عَلَيْكَ الْكِتَابَ
يُتْلَى عَلَيْهِمْ...
29:51. And is it not enough for them that We have sent down to thee the Book which is rehearsed to them?
...إِنَّ فِي ذَلِكَ لَرَحْمَةً وَذِكْرَى لِقَوْمٍ يُؤْمِنُونَ ﴿٥١﴾
Verily, in it is Mercy and Reminder to those who believe.
C3482. The perspicuous Quran, explained in detail by Allah's Messenger, in conjunction with Allah's Signs in nature and in the hearts of men, should be enough for all. It is mere fractious opposition to demand vaguely something more.
Asad’s Version:
29:51
Why - is it not enough for them that We have bestowed this divine writ on thee from on high, to be conveyed [by thee] to them? 50 For, verily, in it is [manifested Our] grace, and a reminder to people who will believe.