Ekottara Agama
The Ekottara Āgama (Sanskrit; traditional Chinese: 增壹阿含經; pinyin: zēngyī-ahánjīng) is an early Indian Buddhist text, of which currently only a Chinese translation is extant (Taishō Tripiṭaka 125). The title Ekottara Āgama literally means "Numbered Discourses," referring to its organizational principle. It is one of the four Āgamas of the Sanskritic Sūtra Piṭaka located in the Chinese Buddhist Canon.
Read more about Ekottara Agama: Origins and History, Mindfulness of Breathing, Influence On East Asia