As for women’s trails, there are two limits too:
Recommended one: woman’s garment should preferably be longer than that of the man with one hand span.
Permissible one: the garment’s length could be longer than that of the man with a cubit. (1)
Women used to carry out this ruling at the time of the prophet ( - ) and later generations.
Now you could understand the purpose of the obligation that was im-posed by muslims on the zimmi women that they must not cover their legs and feet, i.e. to be distinguished form muslim women as is mentioned in “Iqtid?’us Sir?t Al-Mustaq?m”. (2)
[3/ 3] Some parents bring their children to the mosques while the later are wearing shorts:
Indeed, the prophet ( - ) said: ‘Order [and train] your children to pray at the age of seven’. (3) This order entails that
(1) “Fath Al-B?r? ” (vol. 10. p. 259).
(2) “Iqtid?’ As-Sir?t Al-Mustaq?m” (p. 59), Hij?b Al-Mar’ah al-Muslimah” (pp. 36 - 7), “’Aham Qaday? Al-Mar’ah Al-Muslimah” (p. 82 - 3) and “As-Silsilah As-Sah?hah” (vol. 1 / p. 750).
(3) The had?th was related from Sabrah by: Ibn Ab? shaibah in his “Musannaf” (vol. 1 / p. 347), Ad-D?rim? in his “Sunan “(vol. 1 / p. 333), Ab? D?w?d In his “Sunan “(vol. p. 133), Al- Tirmith? in “Al-J?mi’“(vol. 2 / p. 259), Ibn khuzaimah in “As-Sahih “(vol. 2 / p. 102), Ahmad in his “Musnad” (vol. 3. p / 404), Ibn Al-J?r?d in “Al-Muntaq? “(no. 147), At-Tah?w? in “Mushkil Al-’Ath?r “(vol. 3 / p. 231), Ad-Daraqutn? in his “Sunan” (vol. 1 / p. 230), Al H?kim in “Al-Mustadrak “(vol. 1 / p. 201), Al-Baihaq? in “As-Sunan Al-Kubr?” (vol. 2 / p. 14) (vol. 3 / pp. 83 - 4).
At-Tirmith? considered the had?th as “Sound and authentic”. Ibn Khuzaimah, Al-H?kim and Al-Baihaqi considered it as Sah?h, the later two also said: ‘It is authentic according to Muslim’s conditions [of an authentic had?th ]’. This had?th is also supported by a narration traced Back to Abdull?h Ibn ‘Amru, related by: Ab? D?w?d in his “Sunan” (vol. 1 / p. 133), Ahmad in his “Musnad” (vol. 2 / p. 187), Ibn Abi Shaibah in “At-Musannaf” (vol 1. p / 347), Ad-Daraqutn? in his “Sunnan” (vol. 1 / p. 230), Al-H?kim in “Al-Mustadrak” (vol. 1 / p. 197), and Al-Baihaq? in “As-Sunan Al-Kubr?” (vol. 3 / p. 84). This chain of narration is good.