Evangelii Gaudium §252

252. Our relationship with the followers of Islam has taken on great importance, since they are now significantly present in many traditionally Christian countries, where they can freely worship and become fully a part of society. We must never forget that they “profess to hold the faith of Abraham, and together with us they adore the one, merciful God, who will judge humanity on the last day”.[198] The sacred writings of Islam have retained some Christian teachings; Jesus and Mary receive profound veneration and it is admirable to see how Muslims both young and old, men and women, make time for daily prayer and faithfully take part in religious services. Many of them also have a deep conviction that their life, in its entirety, is from God and for God. They also acknowledge the need to respond to God with an ethical commitment and with mercy towards those most in need.

[198] Second Vatican Ecumenical Council, Dogmatic Constitution on the Church Lumen Gentium, 16.