(Imām Bukhārī narrates): Abdullah bin Muhammad narrated to us, he said: Yahya bin Adam narrated to us, he said: Zuhair narrated to us, from Abi Ishaq, he said: Abu Ja'far narrated to us that
he and his father were with Hazrat Jabir bin Abdullah, and other people were also present with him; these people asked Hazrat Jabir (may Allāh be pleased with him) about ghusl. Hazrat Jabir said: One sa' (four litres of water) is sufficient for you. A man said: It is not sufficient for me. Hazrat Jabir said: It was sufficient for one who had more hair than you and was more excellent than you. Then Hazrat Jabir led us in prayer wearing one garment.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، قَالَ حَدَّثَنَا يَحْيَى بْنُ آدَمَ، قَالَ حَدَّثَنَا زُهَيْرٌ، عَنْ أَبِي إِسْحَاقَ، قَالَ حَدَّثَنَا أَبُو جَعْفَرٍ،
أَنَّهُ كَانَ عِنْدَ جَابِرِ بْنِ عَبْدِ اللَّهِ هُوَ وَأَبُوهُ، وَعِنْدَهُ قَوْمٌ فَسَأَلُوهُ عَنِ الْغُسْلِ،. فَقَالَ يَكْفِيكَ صَاعٌ. فَقَالَ رَجُلٌ مَا يَكْفِينِي. فَقَالَ جَابِرٌ كَانَ يَكْفِي مَنْ هُوَ أَوْفَى مِنْكَ شَعَرًا، وَخَيْرٌ مِنْكَ، ثُمَّ أَمَّنَا فِي ثَوْبٍ.
Reference: Sahih Al Bukhari 252