Shloka 13
अत्रेः तपोबलप्रकाशः तथा च्यवनस्य सोमाधिकारः
Atri’s Illumination by Tapas; Cyavana and Soma-Entitlement
न च संध्यामुपासीत न च जाप्य॑ प्रवर्तयेत् । न संकिरेत् तदन्नं च ततः पूर्येत ब्राह्मण:
na ca sandhyām upāsīta na ca jāpyam pravartayet | na saṅkīret tad-annaṃ ca tataḥ pūryeta brāhmaṇaḥ ||
毗湿摩说道：“婆罗门在食用为施罗陀（śrāddha）所供之食的那一天，不应行晨昏礼（sandhyā），不应启动持诵咒念（japa，如伽耶特丽 Gāyatrī），亦不应再进食。能守此诸戒，则婆罗门之仪轨清净得以如法恢复并保持。”
भीष्य उवाच
Educational Q&A
A brāhmaṇa who eats the śrāddha meal should observe specific restraints that day—refraining from sandhyā worship, from initiating mantra-japa (e.g., Gāyatrī), and from eating again—so that ritual purity and propriety connected with the śrāddha are preserved.
In the Anuśāsana Parva’s instruction on dharma, Bhīṣma is laying down detailed rules of conduct related to śrāddha observances, specifying what a brāhmaṇa participant should avoid on the day he partakes of the śrāddha offering.