Sa'd ibn Abdullah narrated from Muhammad ibn Al-Husayn from Musa ibn Umar from Abdullah ibn Al-Mughira from Ishaq ibn Ammar who said: I asked Abu Abdillah عليه السلام, peace be upon him: “May we combine between Maghrib and Isha while residing, before the twilight disappears, without any excuse?” Imam عليه السلام said: "There is no harm."