The Book of Greetings
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، وَأَبُو بَكْرِ بْنُ نَافِعٍ كِلاَهُمَا عَنْ غُنْدَرٍ، مُحَمَّدِ بْنِ جَعْفَرٍ عَنْ شُعْبَةَ، عَنْ أَبِي بِشْرٍ، بِهَذَا الإِسْنَادِ وَقَالَ فِي الْحَدِيثِ فَجَعَلَ يَقْرَأُ أُمَّ الْقُرْآنِ وَيَجْمَعُ بُزَاقَهُ وَيَتْفُلُ فَبَرَأَ الرَّجُلُ .This hadith has been reported on the authority of Abu Bishr with the same the same chain of transmitters (with these words):That he recited Umm-ul-Qur'an (Sura Fatiha), and he collected his spittle and he applied that and the person became all right
From Sahih Muslim, whose reports the scholars accept as authentic.