Full Sharh — Sahih al-Bukhari 7509
حَدَّثَنَا يُوسُفُ بْنُ رَاشِدٍ، حَدَّثَنَا أَحْمَدُ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا أَبُو بَكْرِ بْنُ عَيَّاشٍ، عَنْ حُمَيْدٍ، قَالَ سَمِعْتُ أَنَسًا ـ رضى الله عنه ـ قَالَ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ " إِذَا كَانَ يَوْمُ الْقِيَامَةِ شُفِّعْتُ، فَقُلْتُ يَا رَبِّ أَدْخِلِ الْجَنَّةَ مَنْ كَانَ فِي قَلْبِهِ خَرْدَلَةٌ. فَيَدْخُلُونَ، ثُمَّ أَقُولُ أَدْخِلِ الْجَنَّةَ مَنْ كَانَ فِي قَلْبِهِ أَدْنَى شَىْءٍ ". فَقَالَ أَنَسٌ كَأَنِّي أَنْظُرُ إِلَى أَصَابِعِ رَسُولِ اللَّهِ صلى الله عليه وسلم.
English Translation
Narrated Anas:I heard the Prophet (ﷺ) saying, "On the Day of Resurrection I will intercede and say, "O my Lord! Admit into Paradise (even) those who have faith equal to a mustard seed in their hearts." Such people will enter Paradise, and then I will say, 'O (Allah) admit into Paradise (even) those who have the least amount of faith in their hearts." Anas then said: As if I were just now looking at the fingers of Allah's Apostle
Source
Sahih al-Bukhari(صحيح البخاري)
Oneness, Uniqueness of Allah (Tawheed)
Hadith Number
7509