How to Calculate the Ten Days of Residence

Question

A question regarding the calculation of days during travel according to Ayatollah Ali Khamenei.

Answer 1

Peace be upon you and God's mercy and blessings.

Ayatollah Ali Khamenei (may God protect him):

The term "day" in the context of a ten-day residence refers to the common understanding, meaning from sunrise to sunset. Therefore, if a person arrives at a location at sunrise and intends to stay there until sunset on the tenth day, they can pray completely and do not need to be present there during the first and last nights.

Source: Message on Prayer and Fasting, Prayer, Traveler's Prayer, Interruptions of Travel, Intention of Ten Days Residence, M 562

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Ayatollah Ali Sistani (may God protect him):

The intermediate nights are included in the ten, unlike the first and last nights. It is sufficient to combine the broken day with another day. If one intends to stay from noon of the first day to noon of the eleventh day, they must complete their prayers. The beginning of the day is at dawn, so if one intends to stay from sunrise, they must maintain that intention until sunrise on the eleventh day.

Source: Minhaj al-Salihin, Vol. 1, Interruptions of Travel, Section Two

May you be successful in all good.