SHAFAQNA – The Grand Ayatollah Safi answered a question about white lie.
Question: What is the ruling on telling a white lie?
The Grand Ayatollah Safi: White lie as is prevalent among the people and in fact it is a lie for gaining benefit; it is Haram. The cases where lies are permitted in Islam are specified, as the most important of them are examples such as protecting the life of a believer or to resolve dispute between two Muslims.
Source: PERSIAN SHAFAQNA