मातापित्रोस्तु गतयोरौर्ध्वदेहिककर्मणि ।पुण्य एव स्थितोऽव्यग्रः पावनो दुःखमाययौ
In plain words
But when his mother and father had gone, it was Puṇya alone who remained steady and undisturbed in performing the rites for the departed; Pāvana fell into sorrow.