One verse

Srimad Bhagavatam 10.4.42

10.4.42

स हि सर्वसुराध्यक्षो ह्यसुरद्विड् गुहाशय: । तन्मूला देवता: सर्वा: सेश्वरा: सचतुर्मुखा: । अयं वै तद्वधोपायो यद‍ृषीणां विहिंसनम् ॥ ४२ ॥

sa hi sarva-surādhyakṣo hy asura-dviḍ guhā-śayaḥ tan-mūlā devatāḥ sarvāḥ seśvarāḥ sa-catur-mukhāḥ ayaṁ vai tad-vadhopāyo yad ṛṣīṇāṁ vihiṁsanam

saḥ
He (Lord Viṣṇu)
hi
indeed
sarva-sura-adhyakṣaḥ
the leader of all the demigods
hi
indeed
asura-dviṭ
the enemy of the asuras
guhā-śayaḥ
He is the Supersoul within the core of everyone’s heart
tat-mūlāḥ
taking shelter at His lotus feet
devatāḥ
the demigods exist
sarvāḥ
all of them
sa-īśvarāḥ
including Lord Śiva
sa-catuḥ-mukhāḥ
as well as Lord Brahmā, who has four faces
ayam
this is
vai
indeed
tat-vadha-upāyaḥ
the only means of killing Him (Viṣṇu)
yat
which
ṛṣīṇām
of great sages, saintly persons, or Vaiṣṇavas
vihiṁsanam
suppression with all kinds of persecution

Lord Viṣṇu, the Supersoul within the core of everyone’s heart, is the ultimate enemy of the asuras and is therefore known as asura-dviṭ. He is the leader of all the demigods because all the demigods, including Lord Śiva and Lord Brahmā, exist under His protection. The great saintly persons, sages and Vaiṣṇavas also depend upon Him. To persecute the Vaiṣṇavas, therefore, is the only way to kill Viṣṇu.