It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the sister of Sayyiduna Uqbah (may Allah be pleased with him) made a vow to go to the Sacred House (the Ka'bah) on foot. The Messenger of Allah (peace and blessings be upon him) said: "Indeed, Allah is free of need from your sister's vow. She should ride (i.e., travel mounted) and, as expiation, slaughter a sacrificial animal (hady)."