JAMI AL-TIRMIDHI

Washing limbs once, twice or thrice
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Sayyidina Thabit ibn Abu Safiyah (RA) narrated that he asked Abu Ja'far if Sayyidina Jabir
(RA); had narrated to him the hadith that the Prophet (RA) performed ablution washing
the limbs once, twice and thrice each. He answered, "Yes."
 
[Ibn e Majah 4101]