Narrator:Abdullah ibn Mas‘ūd
حَدَّثَنَا هَنَّادٌ، وَقُتَيْبَةُ، قَالاَ حَدَّثَنَا وَكِيعٌ، عَنْ إِسْرَائِيلَ، عَنْ أَبِي إِسْحَاقَ، عَنْ أَبِي عُبَيْدَةَ، عَنْ عَبْدِ اللَّهِ، قَالَ خَرَجَ النَّبِيُّ صلى الله عليه وسلم لِحَاجَتِهِ فَقَالَ
" الْتَمِسْ لِي ثَلاَثَةَ أَحْجَارٍ " . قَالَ فَأَتَيْتُهُ بِحَجَرَيْنِ وَرَوْثَةٍ فَأَخَذَ الْحَجَرَيْنِ وَأَلْقَى الرَّوْثَةَ وَقَالَ " إِنَّهَا رِكْسٌ "
Abdullah said:
"Allah's Messenger went out to relieve himself. So he said: 'Bring me tree stones.'" He said, "So I came with two stones and a piece of dung. So he took the two stones, and left the dung. He said: 'It is Riks (a degenerative or filthy thing)."
Reported by At-Tirmidhi (No. 17), Ibn Majah (No. 314) and Ahmad (No. 3502, 3850, 4203).