Shurayh bin Hani' (may Allah have mercy on him) says: I asked Sayyidah Aishah (may Allah be pleased with her) about wiping over the leather socks, and she said: Go to Ali (may Allah be pleased with him), for he knows more about this matter than I do. I came to Sayyiduna Ali (may Allah be pleased with him) and asked about wiping, and he said: The Messenger of Allah (peace and blessings be upon him) used to command us that "the resident should wipe for one day and one night, and the traveller for three days and three nights." (b) In another narration it is stated that Sayyidah Aishah (may Allah be pleased with her) said: I do not have much knowledge of this matter. Go to a man and ask him, for he knows this matter better. I asked: Who is he? Sayyidah Aishah (may Allah be pleased with her) said: He is Ali bin Abi Talib (may Allah be pleased with him); go to him and ask about the matter.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1288