AHMAD 10060:
from Abū al-Qāsim ﷺ —
[Machine] I heard Abu Al-Qasim ﷺ saying: "Fast when you see it (the new moon) and break your fast when you see it. But if it is cloudy for you, then complete the thirty (days of the previous month)."
أحمد ١٠٠٦٠:
عن ابو القاسم ﷺ —
سَمِعْتُ أَبَا الْقَاسِمِ ﷺ يَقُولُ صُومُوا لِرُؤْيَتِهِ وَأَفْطِرُوا لِرُؤْيَتِهِ فَإِنْ غُمَّ عَلَيْكُمْ فَعُدُّوا ثَلَاثِينَ