增一阿含經十八曰：「今有四法本末如來所說，云何為四？一切諸行無常，是謂初法本末如來所說。一切諸行苦，是謂第二法本末如來所說。一切諸行無我，是謂第三法本末如來所說。涅槃永寂，是謂第四法本末如來所說。」
The alpha and omega in four laws or dogmas-- that nothing is permanent, that all things involve suffering, that there is no personality, and that nirvana is 永寂 eternal rest.
指「無常、苦、非我、寂滅涅槃」，意即「四法印」。