Al-Kāfi - Volume 3 > The Times of Maghrib and ‘Isha’ Salah (Prayer)
Hadith #12

12ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنِ الْقَاسِمِ بْنِ عُرْوَةَ عَنْ عُبَيْدِ بْنِ زُرَارَةَ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ الْسَّلام) قَالَ إِذَا غَرَبَتِ الشَّمْسُ دَخَلَ وَقْتُ الصَّلاَتَيْنِ إِلاَّ أَنَّ هَذِهِ قَبْلَ هَذِهِ.

12. A number of our people have narrated from Ahmad ibn Muhammad from ibn al-Husayn ibn Sa‘id from al-Qasim ibn ‘Urwah from ‘Ubayd ibn Zurarah who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, has said, ‘When it is sunset, it is time for two Salah (prayer) except that this is before that.’”