Ibn Abbas reported: The Messenger of Allah, peace and blessings be upon him, said, “Verily, Allah has recorded good and evil deeds and He made them clear. Whoever intends to perform a good deed but does not do it, Allah will record it as a complete good deed. If he intends to do it and does so, Allah Almighty will record it as ten good deeds, up to seven hundred times as much or even more. If he intends to do an evil deed and does not do it, Allah will record for him one complete good deed. If he does it, Allah will record for him a single evil deed.”
Source: Ṣaḥīḥ al-Bukhārī 6491, Ṣaḥīḥ Muslim 131
Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim
عَنْ ابْنِ عَبَّاسٍ عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِنَّ اللَّهَ كَتَبَ الْحَسَنَاتِ وَالسَّيِّئَاتِ ثُمَّ بَيَّنَ ذَلِكَ فَمَنْ هَمَّ بِحَسَنَةٍ فَلَمْ يَعْمَلْهَا كَتَبَهَا اللَّهُ عِنْدَهُ حَسَنَةً كَامِلَةً وَإِنْ هَمَّ بِهَا فَعَمِلَهَا كَتَبَهَا اللَّهُ عَزَّ وَجَلَّ عِنْدَهُ عَشْرَ حَسَنَاتٍ إِلَى سَبْعِ مِائَةِ ضِعْفٍ إِلَى أَضْعَافٍ كَثِيرَةٍ وَإِنْ هَمَّ بِسَيِّئَةٍ فَلَمْ يَعْمَلْهَا كَتَبَهَا اللَّهُ عِنْدَهُ حَسَنَةً كَامِلَةً وَإِنْ هَمَّ بِهَا فَعَمِلَهَا كَتَبَهَا اللَّهُ سَيِّئَةً وَاحِدَةً
6491 صحيح البخاري كتاب الرقاق باب من هم بحسنة أو بسيئة
131 صحيح مسلم كتاب الإيمان باب إذا هم العبد بحسنة كتبت وإذا هم بسيئة لم تكتب