The references can be found in the following ways inside Ramayana (among numerous other references).
- Rama was asked to go into the forest for 14 ( 7 * 2) years
- 7 chapters (kAnda) are there in Ramayana
- Rama's birth star is punarvasu (7th star in the astrological chart
- The word Rama (रामा), using a simple numeric scheme (number 1 to 5 for the Sanskrit characters as listed in the standard format) comes to 2 + 5 = 7.
- The word Ramayana (राम + अयन) comes to 2 + 5 + 1 + 1 + 5 = 14.
- The war between Rama and Ravana lasted for 7 days
- Rama is the 7th avatar of Lord Vishnu
- To prove his valor to Sugreeva, Rama shoots an arrow that pierces 7 trees in one shot