´It was narrated that ‘Aishah said:` “If I had known then what I know now, no one would have washed the Prophet (ﷺ) but his wives.”
Explanation & Benefits
Maulana Ataullah Sajid
Benefit:
The relationship between husband and wife is such
that no other relationship is like it.
And there is no veil (barrier) between them regarding any part of the body.
Therefore, they have the greatest right over each other
to give one another the ritual bath (ghusl).
This also refutes those people
who say that after death, a husband and wife can neither look at each other's face nor give each other the ritual bath.
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 1464