Hisnul Muslim · Dua 228 of 267
Invocation upon hearing the cock's crow or the bray of a donkey
((إِذَا سَمِعْتُمْ صِيَاحَ الدِّيَكَةِ فَاسْأَلُوا اللَّهَ مِنْ فَضْلِهِ؛ فَإِنَّهَا رَأَتْ مَلَكاً وَإِذَا سَمِعْتُمْ نَهِيقَ الْحِمَارِ فَتَعَوَّذُوا بِاللَّهِ مِنَ الشَّيطَانِ؛ فَإِنَّهُ رَأَى شَيْطَاناً)).
English meaning
If you hear the crow of a rooster, ask Allah for his bounty for it has seen an angel and if you hear the braying of an ass, seek refuge in Allah for it has seen a devil.