Śrāddha-kalpa: Amarakantaka–Tīrtha-Māhātmya and Akṣaya Pitṛ-Tarpaṇa
वाराणस्यां नगर्यां च देयं श्राद्धं प्रयत्नतः / तत्र योगेश्वरो नित्यं तस्यां दत्तमथाक्षयम्
vārāṇasyāṃ nagaryāṃ ca deyaṃ śrāddhaṃ prayatnataḥ / tatra yogeśvaro nityaṃ tasyāṃ dattamathākṣayam
In the city of Vārāṇasī too, śrāddha should be offered with earnest care. There the Lord of Yoga abides forever; thus what is given there becomes imperishable.