Iblees (Shaytaan) cried loudly at four occasions:

First, when Allah declared him as cursed,

Second, when he was thrown out,

Third, when Prophet (SalAllahu Alayhi wa Sallam) "WAS BORN" and,

Fourth, when Surah Fatiha was revealed.

References:

1. al-Bidayah wa al-Nihaayah, Vol. 3, Page 42

2. Shawaahid an-Nubuwwah by Mawlana Jaami, Page 51

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May we be sacrificed at this Merriment O blessed month of Rabi' al-Awwal!

Your joys surpass thousands of 'Eids; All in the world are rejoicing, except Shaytan.