Dighanikaya 1.96

1.96

Vitakkitanti abhiniropanavasena pavatto vitakko. Vicāritanti anumajjanavasena pavatto vicāro. Etenetanti etena vitakkitena ca vicāritena ca etaṃ paṭhamajjhānaṃ oḷārikaṃ sakaṇḍakaṃ viya khāyati.

“Accompanied by thought”: thought proceeding by way of applied thought. “Accompanied by examination”: examination proceeding by way of sustained thought. “Because of this”: because of this thought and examination, this first absorption appears coarse, like having thorns.