It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that he used to send the weak members of his family ahead. They would stay at Mash'ar al-Haram during the night, remembering Allah as long as they wished, and then proceed to Mina. Some of them would reach Mina at the time of the morning prayer, and some would arrive after that. All of these people were the weak and feeble ones from his family. Sayyiduna Ibn Umar (may Allah be pleased with them both) used to say that the Messenger of Allah (peace and blessings be upon him) had permitted the weak ones to do so.