Shikshasamucchaya
The Shikshasamucchaya [skt.] or Compendium of Training (wyl. bslab pa kun btus) presents clearly and in detail the conduct that Bodhisattvas should embrace at all times. Both Shantideva and Nagarjuna composed a Shiksasamucchaya. It is the longer text written by Shantideva, the Sutrasamucchaya the shorter one. The Bodhicharyavatara is his the middle length text, he chose to teach at Nalanda university because of being of the right length. Nagarjuna Shiksasamucchaya is not extent anymore. He also composed a Sutrasamucchaya which can be found in the Tengyur, whereas Shantideva's has been lost.