s may diversely be substituted for the visarga of the Ablative -5th case before the verb pātu in the chandas (Vedas).,
Thus दिवस्पातु, राज्ञस्पातु ॥ Sometimes, the change does not take place, as परिषदः पातु ॥,
पातौ च बहुलम्
Adhyāya 8 · Pāda 3 · Rule 52