Narrated by Muhammad ibn Ahmad ibn Yahya from Muhammad ibn al-Husayn from al-Hasan ibn Mahbub from Sa’d ibn Abi Khalaf: (Imam) Abu al-Hasan Musa عليه السلام, peace be upon him, said: "The obligatory prayers, when performed at their initial time while fulfilling their proper conditions, are more fragrant than the myrtle branch when it is freshly taken from its tree in its fragrance, scent, and freshness. So adhere to the first time (of prayer)."