Agni Purana 93.20

93.20

tadadhaḥkoṣṭhake dadyāt sāvitryai ca kuśodakaṃ(9) /
dakṣiṇe candanaṃ(10) raktaṃ ṣaṭpadāya vivasvate //

and in the square below that, one should give water with kuśa-grass to Sāvitrī; / in the south, red sandalwood to Vivasvat, who occupies six squares;