SB 3.33.9

maitreya uvāca
īḍito bhagavān evaṁ
 kapilākhyaḥ paraḥ pumān
vācāviklavayety āha
 mātaraṁ mātṛ-vatsalaḥ
Synonyms: 
maitreyaḥ uvāca — Maitreya said; īḍitaḥ — praised; bhagavān — the Supreme Personality of Godhead; evam — thus; kapila-ākhyaḥ — named Kapila; paraḥ — supreme; pumān — person; vācā — with words; aviklavayā — grave; iti — thus; āha — replied; mātaram — to His mother; mātṛ-vatsalaḥ — very affectionate to His mother.
Translation: 
Thus the Supreme Personality of Godhead Kapila, satisfied by the words of His mother, towards whom He was very affectionate, replied with gravity.
Purport: 

Since the Lord is all-perfect, His exhibition of affection for His mother was also complete. After hearing the words of His mother, He most respectfully, with due gravity and good manners, replied.