Verifying the Rise of the New Moon and Finding Witnesses for It
Al-Kāfi|Volume 4|Book 2|Chapter 6
5ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنْ سَيْفِ بْنِ عَمِيرَةَ عَنِ الْفَضْلِ بْنِ عُثْمَانَ قَالَ قَالَ أَبُو عَبْدِ الله (عَلَيْهِ السَّلاَم) لَيْسَ عَلَى أَهْلِ الْقِبْلَةِ إِلاَّ الرُّؤْيَةُ لَيْسَ عَلَى الْمُسْلِمِينَ إِلاَّ الرُّؤْيَةُ.
5. A number of our people have narrated from Ahmad ibn Muhammad ibn ‘Isa from Ali ibn al-Hakam from Sayf ibn ‘Amirah formal- Fadl ibn ‘Uthman who has said the following: “Abu ‘Abd Allah عليه السلام, has said, ‘People of al-Qiblah (al-Ka‘bah) must see the crescent. The Muslims must see the crescent.’”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/229)
- Ṣaḥīḥ al-Kāfī