Abstain from Saum-Wisal. They (his Companions) said: Messenger of Allah, but you observe Saum Wisal. Upon this he said: You are not like me in this matter, for I spend my night (in a state) that my Lord feeds me and provides me drink Devote yourselves to the deeds (the burden of which) you can bear. (Using translation from Muslim 1103b)
قَالَ رَسُولُ اللهِ ﷺ إِيَّاكُمْ وَالْوِصَالَ قَالَهَا ثَلَاثَ مِرَارٍ قَالُوا فَإِنَّكَ تُوَاصِلُ يَا رَسُولَ اللهِ؟ قَالَ إِنَّكُمْ لَسْتُمْ فِي ذَلِكَ مِثْلِي إِنِّي أَبِيتُ يُطْعِمُنِي رَبِّي وَيَسْقِينِي فَاكْلَفُوا مِنَ الْأَعْمَالِ مَا تُطِيقُونَ