Qatada reported,

It reached him that whenever the Prophet ﷺ saw the new crescent, he would say, "A crescent of goodness and right guidance, a crescent of goodness and right guidance, a crescent of goodness and right guidance. I believe in the One who created you," three times. Then he would say, "Praise be to Allah, who has taken away such-and-such month and brought such-and-such month."

Abu Dawud 5092

Daif

حدثنا موسى بن إسمعيل حدثنا أبان

حدثنا قتادة

أنه بلغه أن النبي ﷺ كان إذا رأى الهلال قال هلال خير ورشد هلال خير ورشد هلال خير ورشد آمنت بالذي خلقك ثلاث مرات ثم يقول الحمد لله الذي ذهب بشهر كذا وجاء بشهر كذا

أبو داود 5092ضعيف
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Ayat
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Sunan Abu Dawud
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What a man says when he sees the crescent moon
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Darussalam 5092
Abu Dawud 5092