Skandapurana 6.3.83.27

6.3.83.27

śrīhanumānuvāca -
brahmarakṣovadhājjātā mama hatyā maheśvara .
na pāpo'haṃ bhavedeva yuṣmatsambhāṣaṇe kṣaṇāt .. 83.27 ..

The venerable Hanumān said: / 'The guilt of killing [a brahmin] arose for me from slaying the brahmarākṣasa, O Maheśvara. / May I be free from sin, O Lord, this instant, by conversing with you!'