य इमं परमं गुह्यं श्रावयेद् ब्रह्मसंसदि । प्रयतः श्राद्धकाले वा तदानन्त्याय कल्पते । तदानन्त्याय कल्पत इति ॥ १७॥ इति काठकोपनिषदि प्रथमाध्याये तृतीया वल्ली ॥

ॐ

English Translation

And he who, practising self-control, recites the supreme secret in an assembly of Brahmins or at a after-death ceremony obtains thereby infinite rewards. Yea, he obtains infinite rewards. 
 

ॐ

Commentary

Whoever causes this text, this highest secret to be recited verbatim and with meaning, in an assembly of Brâhmins, being himself clean, or causes it to be recited at the time of Srâddha to those who are there fed, that Srâddha is able to secure for him endless fruits. The repetition is for concluding the chapter.