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حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا ابْنُ أَبِي عَدِيٍّ عَنْ هِشَامٍ الدَّسْتُوَائِيِّ عَنْ قَتَادَةَ عَنْ أَنَسٍأَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ لَا عَدْوَى وَلَا طِيَرَةَ وَأُحِبُّ الْفَأْلَ قَالُوا يَا رَسُولَ اللَّهِ وَمَا الْفَأْلُ قَالَ الْكَلِمَةُ الطَّيِّبَةُقَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ

Narrated to us [Muhammad bin Basysyar] said, narrated to us [Ibnu Abu Adi] from [Hisyam Ad Dastuwa`i] from [Qatadah] from [Anas] that the Messenger of Allah, peace and blessings be upon him, said: 'There is no contagion (belief that disease spreads without Allah’s decree) or superstition (thiyarah), but I like optimism.' The companions asked: 'O Messenger of Allah, what is optimism?' He replied: 'A good word.' Abu Isa said: 'This hadith is hasan sahih.'