CC Madhya 18.125

yan-nāmadheya-śravaṇānukīrtanād
yat-prahvaṇād yat-smaraṇād api kvacit
śvādo ’pi sadyaḥ savanāya kalpate
kutaḥ punas te bhagavan nu darśanāt
Synonyms: 
yat — of whom; nāmadheya — of the name; śravaṇa — from hearing; anukīrtanāt — and thereafter from chanting; yat — to whom; prahvaṇāt — from offering respects; yat — of whom; smaraṇāt — from simply remembering; api — also; kvacit — sometimes; śva-adaḥ — a dog-eater; api — even; sadyaḥ — immediately; savanāya — for performing Vedic sacrifices; kalpate — becomes eligible; kutaḥ — what to speak; punaḥ — again; te — of You; bhagavan — O Supreme Personality of Godhead; nu — certainly; darśanāt — from seeing.
Translation: 
“ ‘To say nothing of the spiritual advancement of persons who see the Supreme Person face to face, even a person born in a family of dog-eaters becomes immediately eligible to perform Vedic sacrifices if he once utters the holy name of the Supreme Personality of Godhead or chants about Him, hears about His pastimes, offers Him obeisances or even remembers Him.’
Purport: 

For an explanation of this verse (Śrīmad-Bhāgavatam 3.33.6), see Madhya-līlā, chapter 16, text 186.