A man came to Allah's Messenger (ﷺ) and said, "O Allah's Messenger (ﷺ)! Who is more entitled to be treated with
the best companionship by me?" The Prophet (ﷺ) said, "Your mother." The man said. "Who is next?" The
Prophet said, "Your mother." The man further said, "Who is next?" The Prophet (ﷺ) said, "Your mother."
The man asked for the fourth time, "Who is next?" The Prophet (ﷺ) said, "Your father. "
Sahih al-Bukhari Book 78, Hadith 2