Narrated Abu Hurayrah: I heard the Messenger of Allah (ﷺ) as saying something similar to this tradition. He (the narrator) said to AbuHurayrah: What is due on camels? He replied: That you should give the best of your camels (in the path of Allah), that you lend a milch she-camel, you lend your mount for riding, that you lend the stallion for covering, and that you give the milk (to the people) for drinking.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ، حَدَّثَنَا يَزِيدُ بْنُ هَارُونَ، أَخْبَرَنَا شُعْبَةُ، عَنْ قَتَادَةَ، عَنْ أَبِي عُمَرَ الْغُدَانِيِّ، عَنْ أَبِي هُرَيْرَةَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم نَحْوَ هَذِهِ الْقِصَّةِ فَقَالَ لَهُ - يَعْنِي لأَبِي هُرَيْرَةَ - فَمَا حَقُّ الإِبِلِ قَالَ تُعْطِي الْكَرِيمَةَ وَتَمْنَحُ الْغَزِيرَةَ وَتُفْقِرُ الظَّهْرَ وَتُطْرِقُ الْفَحْلَ وَتَسْقِي اللَّبَنَ .
sunnah.com