حَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا اللَّيْثُ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي قَتَادَةَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم أَنَّهُ قَالَ ‏"‏ الرُّؤْيَا مِنَ اللَّهِ وَالْحُلْمُ مِنَ الشَّيْطَانِ فَإِذَا رَأَى أَحَدُكُمْ شَيْئًا يَكْرَهُهُ فَلْيَنْفُثْ عَنْ يَسَارِهِ ثَلاَثَ مَرَّاتٍ وَلْيَسْتَعِذْ بِاللَّهِ مِنْ شَرِّهَا فَإِنَّهَا لاَ تَضُرُّهُ ‏"‏ ‏.‏ قَالَ وَفِي الْبَابِ عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو وَأَبِي سَعِيدٍ وَجَابِرٍ وَأَنَسٍ ‏.‏ قَالَ وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏

'Abu Qatadah narrated that the Messenger of Allah (s.a.w) said: "Dreams are from Allah and Hulum are from Shaitan. So when one of you sees something that bothers him, then let him spit on his left three times, and let him seek refuge in Allah from its evil. Then it will not harm him." Translation Not Available

Book Ref: Jamiya Tirmidhi Book 34 Hadith 2277
Web Ref:  Jamiya Tirmidhi Vol 4 Book 8 Hadith 2277