Sahih Muslim , Hadith 1865

It has been narrated on the authority of Abu Sa'id al-Khudari that a Bedouin asked the Messenger of Allah about Migration. He replied: Do you talk of Hijra? The affair of Hijra is very difficult. But have you got camels? The bedouin said: Yes. He asked: Do you pay the poor-rate payable on their account? He replied: Yes. He (the Holy Prophet) said: Go on doing good deeds (across the seas), for surely God will not leave any of your deeds unrewarded.

وَحَدَّثَنَا أَبُو بَكْرِ بْنُ خَلاَّدٍ الْبَاهِلِيُّ، حَدَّثَنَا الْوَلِيدُ بْنُ مُسْلِمٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ، بْنُ عَمْرٍو الأَوْزَاعِيُّ حَدَّثَنِي ابْنُ شِهَابٍ الزُّهْرِيُّ، حَدَّثَنِي عَطَاءُ بْنُ يَزِيدَ اللَّيْثِيُّ، أَنَّهُ حَدَّثَهُمْ قَالَ حَدَّثَنِي أَبُو سَعِيدٍ الْخُدْرِيُّ، أَنَّ أَعْرَابِيًّا، سَأَلَ رَسُولَ اللَّهِ صلى الله عليه وسلم عَنِ الْهِجْرَةِ فَقَالَ ‏"‏ وَيْحَكَ إِنَّ شَأْنَ الْهِجْرَةِ لَشَدِيدٌ فَهَلْ لَكَ مِنْ إِبِلٍ ‏"‏ ‏.‏ قَالَ نَعَمْ ‏.‏ قَالَ ‏"‏ فَهَلْ تُؤْتِي صَدَقَتَهَا ‏"‏ ‏.‏ قَالَ نَعَمْ ‏.‏ قَالَ ‏"‏ فَاعْمَلْ مِنْ وَرَاءِ الْبِحَارِ فَإِنَّ اللَّهَ لَنْ يَتِرَكَ مِنْ عَمَلِكَ شَيْئًا ‏"‏ ‏.‏

sunnah.com

This tradition has been handed down through a different chain of transmitter with the addition of the following words at the end: " Do you milk them on the day they arrive at the water? He replied: Yes."

وَحَدَّثَنَاهُ عَبْدُ اللَّهِ بْنُ عَبْدِ الرَّحْمَنِ الدَّارِمِيُّ، حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ، عَنِ الأَوْزَاعِيِّ، بِهَذَا الإِسْنَادِ ‏.‏ مِثْلَهُ غَيْرَ أَنَّهُ قَالَ ‏"‏ إِنَّ اللَّهَ لَنْ يَتِرَكَ مِنْ عَمَلِكَ شَيْئًا ‏"‏ ‏.‏ وَزَادَ فِي الْحَدِيثِ قَالَ ‏"‏ فَهَلْ تَحْلُبُهَا يَوْمَ وِرْدِهَا ‏"‏ ‏.‏ قَالَ نَعَمْ ‏.‏

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