It is narrated from Sayyiduna Abdur Rahman (may Allah be pleased with him), he says: The Messenger of Allah (peace and blessings be upon him) saw a rope hanging between two pillars and asked: Whose is this? The companions said: This belongs to Sayyidah Hamnah bint Jahsh (may Allah be pleased with her); when she becomes tired (while praying), she hangs onto it. The Prophet (peace and blessings be upon him) said: She should pray according to her strength, and when she becomes tired, she should sit down (and discontinue the prayer).