Search String in many files

The command to find string in many files:

srini@ openslp-1.2.1]$ find . -exec grep -q "427" '{}' \; -print
./common/slp_message.h
./config.log
./doc/rfc/rfc2614.txt
./doc/rfc/rfc2608.txt
./doc/rfc/rfc2165.txt