हन्ति निन्दति वै द्वेष्टि वैष्णवान्नाभिनन्दति ।
क्रुध्यते याति नो हर्षं दर्शने पतनानि षट् ॥
hanti nindati vai dveṣṭi vaiṣṇavān nābhinandati |
krudhyate yāti no harṣaṁ darśane patanāni ṣaṭ ||
(Skanda Purāṇa; cited in Hari-bhakti-vilāsa 10.312, Bhakti Sandarbha: 265)
“Striking, defaming, despising, not respectfully greeting, getting angry with, and not being joyful upon seeing Vaiṣṇavas are six causes of falling [into Naraka].”