Sahih al-Bukhari 3726
Book 62: Companions of the Prophet · Narrated by Sa`d
Arabic
حَدَّثَنَا مَكِّيُّ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا هَاشِمُ بْنُ هَاشِمٍ، عَنْ عَامِرِ بْنِ سَعْدٍ، عَنْ أَبِيهِ، قَالَ لَقَدْ رَأَيْتُنِي وَأَنَا ثُلُثُ الإِسْلاَمِ،.
English translation
Narrated Sa`d:No doubt, (for some time) I stood for one-third of the Muslims
Reference: Sahih al-Bukhari 3726, Book of Companions of the Prophet. English translation by Dr. Muhammad Muhsin Khan.