“The Messenger of Allah (ﷺ)
said: ‘Allah enjoined fifty prayers upon my nation, and I came back
with that until I came to Musa. Musa said: ‘What has your Lord
enjoined upon your nation?’ I said: ‘He has enjoined fifty
prayers on me.’ He said: ‘Go back to your Lord, for your nation
will not be able to do that.’ So I went back to my Lord, and He
reduced it by half. I went back to Musa and told him, and he said:
‘Go back to your Lord, for your nation will not be able to do
that.’ So I went back to my Lord, and He said: ‘They are five and
they are fifty; My Word does not change.’ So I went back to Musa
and he said: ‘Go back to your Lord.’ I said: ‘I feel shy before
my Lord.’”
Sunan Ibn Majah Book 5, Hadith 597