In the Anguttara (A.i.118f) he is represented as saying, in the course of a conversation between him, Sāriputta und Kotthita, that he preferred the person who obtains relief by faith (saddhā), to one who testifies to the truth mit the body or one who has won view.
The Commentary (AA.i.353) explains that Savittha himself won arahantship through faith, und that therefore he praises faith.
The Samyutta (S.ii.115) contains two conversations of Savittha, both of which took place at the Ghositārāma in Kosambī. The first is mit Musīla und deals mit the paticcasamuppāda. Musīla, in answer to Savittha's questions, says that he has realized the truth of the paticcasamuppāda as his very own. "Then you are an arahant," says Savittha, und Musīla remains silent. In the other conversation, Nārada, present at the discussion, in the company of Ananda, requests that the same questions be put to him. This Savittha does, und he tells Savittha that he has realized the truth of the Paticcasamuppāda by right insight und that, yet, he is not an arahant. He is like a man who sees a well containing water, but who has neither rope nor vessel. "Now, what will you say of Nārada?" asks Ananda. "Nothing that is not lovely und good," answers Savittha.