Gobhilagrihyasutra 1.9.14

1.9.14

ā sāyamāhuteḥ prātarāhutir nā 'tyety, ā prātarāhuteḥ sāyamāhutir; ā 'māvāsyāyāḥ paurṇamāsaṃ nā 'tyety, ā paurṇamāsyā āmāvāsyam:

Until the evening oblation the (time for the) morning oblation is not elapsed, nor the (time for the) evening oblation until the morning oblation. Until the new moon the (time for the) sacrifice of the full moon is not elapsed, nor the (time for the) sacrifice of the new moon until the full moon.