'Abdullah b. 'Amr (Allah be pleased with both of them) reported:The Messenger of Allah (ﷺ) said to me: I have been informed that you stand for prayer the whole of night and fast during the day. I said: I do that, whereupon he said: If you did that you in fact strained heavily your eyes and made yourself weak. There is a right of your eyes (upon you) and a right of your self (upon you) and a right of your family (upon you). Stand for prayer and sleep. observe fasts and break (them).
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ عَمْرٍو، عَنْ أَبِي الْعَبَّاسِ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، - رضى الله عنهما - قَالَ قَالَ لِي رَسُولُ اللَّهِ صلى الله عليه وسلم " أَلَمْ أُخْبَرْ أَنَّكَ تَقُومُ اللَّيْلَ وَتَصُومُ النَّهَارَ " . قُلْتُ إِنِّي أَفْعَلُ ذَلِكَ . قَالَ " فَإِنَّكَ إِذَا فَعَلْتَ ذَلِكَ هَجَمَتْ عَيْنَاكَ وَنَفِهَتْ نَفْسُكَ لِعَيْنِكَ حَقٌّ وَلِنَفْسِكَ حَقٌّ وَلأَهْلِكَ حَقٌّ قُمْ وَنَمْ وَصُمْ وَأَفْطِرْ " .
Muslim
The Book of Fasting • Hadith 244