Quran 7:131 from Surah Al-A'raaf on Divine Marvels.
فَإِذَا جَآءَتۡهُمُ ٱلۡحَسَنَةُ قَالُواْ لَنَا هَٰذِهِۦۖ وَإِن تُصِبۡهُمۡ سَيِّئَةٞ يَطَّيَّرُواْ بِمُوسَىٰ وَمَن مَّعَهُۥٓۗ أَلَآ إِنَّمَا طَٰٓئِرُهُمۡ عِندَ ٱللَّهِ وَلَٰكِنَّ أَكۡثَرَهُمۡ لَا يَعۡلَمُونَ
English translation: But when came to them the good they said For us (is) this And if afflicts them bad they ascribe evil omens to Musa and who (were) with him Behold Only their evil omens (are) with Allah but most of them (do) not know
Transliteration: fa-idha jaathumu al-hasanatu qalu lana hadhihi wa-in tusib'hum sayyi-atun yattayyaru bimusa waman ma'ahu ala innama tairuhum inda al-lahi walakinna aktharahum la ya'lamuna