كتاب الإيمان والنذور
15
Oaths and Vows
Mishkat al-Masabih 3409
Abu Huraira reported the Prophet as saying that if anyone swears an oath in the course of which he says, “By al-Lat and al-‘Uzza”, he should say, “There is no god but God”; and that if anyone says to his friend, “Come and let me play for money with you”, he should pay sadaqa. (Bukhari and Muslim.)
وَعَنْ أَبِي هُرَيْرَةَ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: " مَنْ حَلَفَ فَقَالَ فِي حَلِفِهِ: بِاللَّاتِ وَالْعُزَّى فَلْيَقُلْ: لَا إِلَهَ إِلَّا اللَّهُ. وَمَنْ قَالَ لِصَاحِبِهِ: تَعَالَ أقامرك فليتصدق "
  مُتَّفَقٌ عَلَيْهِ   (الألباني) حكم   :
Reference : Mishkat al-Masabih 3409
In-book reference : Book 15, Hadith 4