The Prophet (May peace be upon him) used to seek refuge in Allah for al-Hasan and al-husain, saying ; I seek refuge for both of you in the perfect words of Allah from every devil and every poisonous thing and from the evil eye which influences. He would then say; your father sought refuge in Allah by them for Ismail and Ishaq. Abu Dawud said; this is a proof of the fact that the Quran is not created. (Using translation from Abū Dāʾūd 4737)   

عَنِ النَّبِيِّ ﷺ أَنَّهُ كَانَ يَعُوذُ الْحَسَنَ وَالْحُسَيْنَ «أُعِيذُكُمَا بِكَلِمَاتِ اللهِ التَّامَّةِ مِنْ كُلِّ شَيْطَانٍ وَهَامَّةٍ وَمِنْ شَرِّ كُلِّ عَيْنٍ لَامَّةٍ» وَيَقُولُ «هَكَذَا كَانَ أَبِي إِبْرَاهِيمُ يُعَوِّذُ إِسْمَاعِيلَ وَإِسْحَاقَ»  

The Messenger of Allah ﷺ presented himself to the people at Arafat, saying: Is there any man who takes me to his people? The Quraysh have prevented me from preaching the word of my Lord. (Using translation from Abū Dāʾūd 4734)  

كَانَ رَسُولُ اللهِ ﷺ يَعْرِضُ نَفْسَهُ عَلَى النَّاسِ فِي الْمَوْسِمِ فَيَقُولُ «أَلَا رَجُلٌ يَحْمِلُنِي إِلَى قَوْمِهِ فَإِنَّ قُرَيْشًا قَدْ مَنَعُونِي أَنْ أُبَلِّغَ كَلَامَ رَبِّي»