The Prophet said: "Whoever hears the call and does not come, his prayer is not valid, except for those who have an excuse."
Sunan Ibn Majah Book 4, Hadith 59
← Previous Hadith "I said to the Prophet: 'I am an old man and blind; my house is far away, and I have no one to lead me. Is there any concession (for me not to have to attend the prayer in the mosque)?' He said: 'Can you hear the call?' I said: 'Yes.' He said: 'Then I do not find any concession for you.'"

Sunan Ibn Majah Book 4, Hadith 58 Next Hadith → They heard the Prophet say on his pulpit: "People should desist from failing to attend the congregations, otherwise Allah will seal their hearts, and they will be among the negligent."

Sunan Ibn Majah Book 4, Hadith 60