It was narrated from Anas bin Malik that the Prophet (ﷺ) said:“There is nothing standing between a person and Shirk (polytheism) except leaving the prayer, so if he leaves it he has committed Shirk.”
Hadith No. 1080
Sunan Ibn Majah
Gradings:
Al-Albani:
Sahih
Muhammad Fouad Abd al-Baqi:
Sahih
Shuaib Al Arnaut:
Sahih Lighairihi
Zubair Ali Zai:
Daif