Apastambagrihyasutra 6.14.3

6.14.3

pariṣecanāntaṃ kṛtvāpareṇāgniṃ prācīnamupaveśya treṇyā śalalyā tribhirdarbhapuñjīlaiśśalāluglapsenetyūrdhvaṃ sīmantamunnayati vyāhṛtībhiruttarābhyāṃ ca gāyatamiti vīṇāgāyinau saṃśāsti \ 4 \

Having performed (the rites) down to the sprinkling (of water) round (the fire), he makes her sit down to the west of the fire, facing the east, and parts her hair upwards (i.e. beginning from the front) with a porcupine's quill that has three white spots, with three Darbha blades, and with a bunch of unripe Udumbara fruits, with the Vyâhritis or with the two next (verses, II, 11, 9. 10).