-

حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ حَدَّثَنَا مُحَمَّدُ بْنُ أَبِي عُبَيْدَةَ عَنْ أَبِيهِ عَنْ الْأَعْمَشِ عَنْ أَبِي سُفْيَانَ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَقَالُوا يَا رَسُولَ اللَّهِ الْحَجُّ فِي كُلِّ عَامٍ قَالَ لَوْ قُلْتُ نَعَمْ لَوَجَبَتْ وَلَوْ وَجَبَتْ لَمْ تَقُومُوا بِهَا وَلَوْ لَمْ تَقُومُوا بِهَا عُذِّبْتُمْ

Narrated by [Muhammad bin Abdullah bin Numair], he said: Narrated by [Muhammad bin Abu 'Ubaidah] from his father, from [Al A'masy], from [Abu Sufyan], from [Anas bin Malik] radliallahu 'anhu, he said: The companions asked, 'O Messenger of Allah, is Hajj obligatory every year?' He replied, 'If I said yes, it would become obligatory annually, and if it were obligatory, you would not be able to fulfill it. If you failed to fulfill it, you would be punished.'