What are the conditions for a child to be a mahram for 'Umrah?
Machine translationRead the Arabic original
The questioner : Honorable Shaykh, may Allah preserve you, this questioner says: Does a young boy in 'Umrah enter the state of ihram? And what is the appropriate age for him to be in ihram?
The Shaykh :[Al-Fatihah 1:1-2], and may Allah send blessings and peace upon our Prophet Muhammad, and upon his family and his Companions, and whoever does good by his favor. A person who is in the state of ihram must be an adult and of sound mind. An adult is one who has reached the age of fifteen, or who has emitted semen, or whose pubic hair has grown. Whoever has not reached adulthood cannot be a mahram. If a woman does not have a mahram, it is not permissible for her to perform 'Umrah or Hajj.
The questioner : Does the seclusion (khalwah) with a young boy count for anything?
The Shaykh : Some scholars say that if the boy is ten years old or thereabouts, and he is intelligent and sharp, then he is considered an adult. Some say he must be an adult of sound mind.
The presenter : Very well, may Allah reward you.
The Shaykh :
(1) In the name of Allah, the Entirely Merciful, the Especially Merciful. (2) [All] praise is [due] to Allah, Lord of the worlds -
بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَThe questioner : Does the seclusion (khalwah) with a young boy count for anything?
The Shaykh : Some scholars say that if the boy is ten years old or thereabouts, and he is intelligent and sharp, then he is considered an adult. Some say he must be an adult of sound mind.
The presenter : Very well, may Allah reward you.
Source
ابن العثيمين - فتاوى على الهاتف - فتاوى الصيام — archive.org (47:57)
The Arabic text is a machine transcription of the audio recording.