عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو رَضِيَ اللَّهُ عَنْهُمَا عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَنَّهُ قَالَ {لَهُمُ الْبُشْرَى فِي الْحَيَاةِ الدُّنْيَا} قَالَ الرُّؤْيَا الصَّالِحَةُ يُبَشَّرُهَا الْمُؤْمِنُ هِيَ جُزْءٌ مِنْ تِسْعَةٍ وَأَرْبَعِينَ جُزْءًا مِنَ النُّبُوَّةِ فَمَنْ رَأَى ذَلِكَ فَلْيُخْبِرْ بِهَا وَمَنْ رَأَى سِوَى ذَلِكَ فَإِنَّمَا هُوَ مِنَ الشَّيْطَانِ لِيُحْزِنَهُ فَلْيَنْفُثْ عَنْ يَسَارِهِ ثَلَاثًا وَلْيَسْكُتْ وَلَا يُخْبِرْ بِهَا أَحَدًا
Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) narrates that the Noble Prophet (peace and blessings be upon him) said: Regarding Allah Almighty’s statement {لَہُمُ الْبُشْرٰی فِی الْحَیَاۃِ الدُّنْیَا} … (For them there is glad tidings in the life of this world), this glad tidings refers to a good dream, in which a believer is given glad tidings. This is the forty-ninth part of Prophethood. Whoever sees such a dream should tell it to others, and if it is any other kind of dream (which is not good), then it is from Satan, who tries to disturb him. He should not inform anyone about it, and should spit three times to his left and remain silent and not tell anyone.