[Machine] Narrated by the Prophet ﷺ or someone who heard it from the Prophet ﷺ that his mount stumbled and he said, "May the devil be cursed!" Then he said, "Don't say that, for he becomes proud when you say that, until he becomes as large as a mountain and says, 'By my strength, I caused him to stumble.' But if you say 'Bismillah' (in the name of Allah), he becomes small until he becomes as small as a fly."
عَنْ رِدْفِ النَّبِيِّ ﷺ أَوْ مَنْ حَدَّثَهُ عَنْ رِدْفِ النَّبِيِّ ﷺ أَنَّهُ كَانَ رِدْفَهُ فَعَثَرَتْ بِهِ دَابَّتُهُ فَقَالَ تَعِسَ الشَّيْطَانُ فَقَالَ لَا تَفْعَلْ فَإِنَّهُ يَتَعَاظَمُ إِذَا قُلْتَ ذَلِكَ حَتَّى يَصِيرَ مِثْلَ الْجَبَلِ وَيَقُولُ بِقُوَّتِي صَرَعْتُهُ وَإِذَا قُلْتَ بِسْمِ اللهِ تَصَاغَرَ حَتَّى يَكُونَ مِثْلَ الذُّبَابِ