When the Verse:-- 'Those who believe and mix not their belief with wrong.' was revealed, the Muslims felt it very hard on them and said, "O Messenger of Allah ﷺ! Who amongst us does not do wrong to himself?" He replied, "The Verse does not mean this. But that (wrong) means to associate others in worship to Allah: Don't you listen to what Luqman said to his son when he was advising him," O my son! Join not others in worship with Allah. Verily joining others in worship with Allah is a great wrong indeed." (31.13) (Using translation from Bukhārī 3429)  

لَمَّا نَزَلَتِ {الَّذِينَ آمَنُوا وَلَمْ يَلْبِسُوا} [الأنعام 82] إِيمَانَهُمْ بِظُلْمٍ شَقَّ ذَلِكَ عَلَى الْمُسْلِمِينَ قَالُوا يَا رَسُولَ اللهِ وَأَيُّنَا لَا يَظْلِمُ نَفْسَهُ؟ قَالَ لَيْسَ ذَلِكَ إِنَّمَا هُوَ الشِّرْكُ أَلَمْ تَسْمَعُوا إِلَى مَا قَالَ لُقْمَانُ لِابْنِهِ {يَا بُنَيَّ لَا تُشْرِكْ بِاللهِ إِنَّ الشِّرْكَ لَظُلْمٌ عَظِيمٌ} [لقمان 13]  

when you hear the cocks crowing, ask Allah for some of His grace, for they have seen as angel; but when you hear an ass braying, seek refuge in Allah from the devil, for it has seen the devil. (Using translation from Abū Dāʾūd 5102)  

عَنِ النَّبِيِّ ﷺ قَالَ «إِذَا سَمِعْتُمْ صِيَاحَ الدِّيَكَةِ فَاسْأَلُوا اللهَ مِنْ فَضْلِهِ فَإِنَّهَا رَأَتْ مَلَكًا وَإِذَا سَمِعْتُمْ نَهِيقَ الْحِمَارِ فَتَعَوَّذُوا بِاللهِ مِنَ الشَّيْطَانِ فَإِنَّهَا رَأَتْ شَيْطَانًا»