Forgotten Sunnah Series-12

Dua when sighting new moon.

Bilal bin Yahya bin Talhah bin`Ubaidullah narrated : from his father, from his grandfather Talhah bin `Ubaidullah that when the Prophet (ﷺ) would see a crescent moon, he would say: “O Allah, bring it over us with blessing and faith, and security and Islam. My Lord and your Lord is Allah (Allāhumma ahlilhu `alainā bil-yumni wal-Īmān, was-salāmati wal-Islām, rabbī wa rabbuk Allāh).”
(Sunan At-Tirmidhi,3451)
[عن عبدالله بن عمر:]
كانَ رسولُ اللهِ إذا رأى الهلالَ قالَ:

اللهُ أكبرُ،
اللَّهمَّ أَهِلَّهُ علينا بالأمنِ والإيمانِ،
والسَّلامةِ والإسلامِ،

والتَّوفيقِ لما تحبُّ، وَترضَى، ربُّنا وربُّكَ اللهُ

الألباني (١٤٢٠ هـ)، الكلم الطيب ١٦٢ • صحيح بشواهده