Sahih Al Bukhari 1: Chapter 2, Hadith 54

(54) What is said regarding the statement: “The reward of deeds depends upon the intention and hoping to get rewards from Allah.”

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ أَخْبَرَنَا مَالِكٌ، ‏‏‏‏‏‏عَنْ يَحْيَى بْنِ سَعِيدٍ، ‏‏‏‏‏‏عَنْ مُحَمَّدِ بْنِ إِبْرَاهِيمَ، ‏‏‏‏‏‏عَنْ عَلْقَمَةَ بْنِ وَقَّاصٍ، ‏‏‏‏‏‏عَنْ عُمَرَ، ‏‏‏‏‏‏أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ "الْأَعْمَالُ بِالنِّيَّةِ وَلِكُلِّ امْرِئٍ مَا نَوَى، ‏‏‏‏‏‏فَمَنْ كَانَتْ هِجْرَتُهُ إِلَى اللَّهِ وَرَسُولِهِ فَهِجْرَتُهُ إِلَى اللَّهِ وَرَسُولِهِ، ‏‏‏‏‏‏وَمَنْ كَانَتْ هِجْرَتُهُ لدُنْيَا يُصِيبُهَا أَوِ امْرَأَةٍ يَتَزَوَّجُهَا فَهِجْرَتُهُ إِلَى مَا هَاجَرَ إِلَيْهِ".

SAHIH HADITH:

Narrated 'Umar bin Al-Khattab: Allah's Apostle said, The reward of deeds depends upon the intention and every person will get the reward according to what he has intended. So whoever emigrated for Allah and His Apostle, then his emigration was for Allah and His Apostle. And whoever emigrated for worldly benefits or for a woman to marry, his emigration was for what he emigrated for.

REFERENCE:

Sahih Al Bukhari 1: Chapter 2, Hadith 54