Both sections live in the same manual

include/tbl/vsl_tags.h

@@ -451,8 +451,8 @@ SLTM(Timestamp, 0, "Timing information",
 	"Time stamps are issued by Varnish on certain events,"
 	" and show the absolute time of the event, the time spent since the"
 	" start of the work unit, and the time spent since the last timestamp"
-	" was logged. See vsl(7) for information about the individual"
-	" timestamps.\n\n"
+	" was logged. See the TIMESTAMPS section below for information about"
+	" the individual time stamps.\n\n"
 	"The format is::\n\n"
 	"\t%s: %f %f %f\n"
 	"\t|   |  |  |\n"