遇便(yù biàn) “by chance”
HD. 10.1031b(现代); DK. 11.108a(现代);
10c10.然我等不解方便随宜所说。初闻佛法，遇便信受，思惟：“取证”(p)
K. 60.13.(prathamabhāṣitā) eva; not found at Z. 73b15;