Abu Yunus, the freed slave of Aisha (Tabi'i), narrates that Umm al-Mu'minin Sayyida Aisha (may Allah be pleased with her) ordered me to write a mushaf (copy of the Qur'an) for her. Then she said: When you reach this verse «حَافِظُوا عَلَى الصَّلَوَاتِ وَالصَّلَاةِ الْوُسْطَىٰ وَقُومُوا لِلَّـهِ قَانِتِينَ» "Guard strictly the prayers, and the middle prayer." [البقرة: 238] , inform me. When I reached there, I informed her. She dictated to me: «حَافِظُوا عَلَى الصَّلَوَاتِ، وَالصَّلَاةِ الْوُسْطَى، وَصَلَاةِ الْعَصْرِ، وَقُومُوا لِلَّهِ قَانِتِينَ» Then (Umm al-Mu'minin, may Allah be pleased with her) said: I heard it like this from the Messenger of Allah (peace and blessings be upon him).