Shikshasamucchaya
The Shikshasamuccaya [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 Shiksasamuccaya. It is the longer text written by Shantideva, the Sutrasamuccaya 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 Shiksasamuccaya is not extent anymore. He also composed a Sutrasamuccaya which can be found in the Tengyur, whereas Shantideva's has been lost.