Praise be to Allaah.
Clipping the nails is one of the Sunan al-Fitrah, as
is indicated by the saheeh ahaadeeth, and it is mustahabb to start on the
right, because it is proven in Saheeh al-Bukhaari (163) that
‘Aa’ishah (may Allaah be pleased with him) said: The Prophet (peace and
blessings of Allaah be upon him) used to like to start on the right when
putting on shoes, combing his hair, purifying himself and in all his
affairs.
Al-Nawawi (may Allaah have mercy on him) said in
al-Majmoo’ (1/339): There is scholarly consensus that clipping the nails
is Sunnah, and that applies equally to men and women, and to the hands and
feet. It is mustahabb to start with the right hand, then the left, then the
right foot then the left. End quote.
And he (may Allaah have mercy on him) said in Sharh Saheeh
Muslim (3/149): It is mustahabb to start with the hands before the feet,
and to start with the forefinger of the right hand, then the middle finger,
then the ring finger, then the pinkie finger, then the thumbs, then to move
to the left hand and start with the pinkie finger then the ring finger,
until all the fingers are done, then to move to the right foot and start
with the smallest toe on the right foot and end with the smallest toe on the
left foot. And Allaah knows best. End quote.
The Hanbalis mentioned a different sequence of fingers when
clipping the nails, but no saheeh report has been narrated from the Prophet
(peace and blessings of Allaah be upon him) concerning this matter.
Al-‘Iraaqi (may Allaah have mercy on him) said in Tarh
al-Tathreeb (2/77): There is no proven hadeeth which may be followed
with regard to how to clip the nails. End quote.
Ibn Hajar said in Fath al-Baari (10/345):
There is no proven hadeeth about the order of fingers when
cutting the nails. … Ibn Daqeeq al-Eid rejected the order mentioned by
al-Ghazaali and those who followed him, and he said: There is no basis for
any of that, and to suggest that it is mustahabb when there is no evidence
for that is abhorrent in my view. If anyone were to suggest that it is
mustahabb to start with the right forefinger because of its honourable
status, there is no basis for the rest of this sequence. Yes there is a
basis for starting with the right hand and the right foot, which is “he
liked to start on the right.” End quote.
And Allaah knows best.