Arabic Text
حَدَّثَنِي إِسْحَاقُ، أَخْبَرَنَا أَبُو أُسَامَةَ، حَدَّثَنَا هَاشِمٌ، قَالَ سَمِعْتُ سَعِيدَ بْنَ الْمُسَيَّبِ، قَالَ سَمِعْتُ أَبَا إِسْحَاقَ، سَعْدَ بْنَ أَبِي وَقَّاصٍ يَقُولُ مَا أَسْلَمَ أَحَدٌ إِلاَّ فِي الْيَوْمِ الَّذِي أَسْلَمْتُ فِيهِ، وَلَقَدْ مَكَثْتُ سَبْعَةَ أَيَّامٍ وَإِنِّي لَثُلُثُ الإِسْلاَمِ
English Translation
Narrated Abu Ishaq Saud bin Abi Waqqas: None embraced Islam, except on the day I embraced it. And for seven days I was one of the three persons who were Muslims (one-third of Islam).
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.