94 Preface فَإِن كُنتَ في شَكٍّ مِمّا أَنزَلنا إِلَيكَ فَاسأَلِ الَّذينَ يَقرَءونَ الكِتابَ مِن قَبلِكَ ۚ لَقَد جاءَكَ الحَقُّ مِن رَبِّكَ فَلا تَكونَنَّ مِنَ المُمتَرينَYusuf AliIf thou wert in doubt as to what We have revealed unto thee, then ask those who have been reading the Book from before thee:1 the Truth hath indeed come to thee from thy Lord: so be in no wise of those in doubt.2God’s Truth is all one, and even in different forms men sincere in Religion recognise the oneness. So sincere Jews like 'Abd God ibn Salam, and sincere Christians like Waraqah or the Nestorian monk Bahirah, were ready to recognise the mission of Muḥammad al Muṣṭafā. “The Book” in this connection is Revelation generally, including pre-Islamic revelations.Cf. 3:60 and n. 399.