Ahmad ibn Muhammad ibn Isa narrated from Ali ibn al-Nu‘man from al-Harith al-Nasri from Abu Abdillah عليه السلام. He said: I heard Him عليه السلام say: “The day prayer is sixteen rak‘ahs, eight when the sun passes the meridian, and eight after Dhuhr, and four rak‘ahs after Maghrib. O’ Harith, do not abandon them whether in travel or at home. And two rak‘ahs after Isha, my father عليه السلام used to pray them while sitting, and I pray them while standing. And the Messenger of Allah سبحانه وتعالى, may Allah سبحانه وتعالى bless him and his family, used to pray thirteen rak‘ahs at night.”