It is narrated on the authority of Ibn 'Abbas that he (the Holy Prophet) saw (Allah) with, his heart.
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا حَفْصٌ، عَنْ عَبْدِ الْمَلِكِ، عَنْ عَطَاءٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ رَآهُ بِقَلْبِهِ .
• Sahih Muslim, 176a
• Sahih Muslim, Vol. 1, Book of Faith (Kitab Al-Iman), Hadith 334
• Sahih Muslim, Book of Faith (Kitab Al-Iman), Hadith 334