Answer: She should learn from her husband as much as possible. This is a big responsibility on the husband’s shoulders. The Holy Quran states in part 28, Sūraĥ At-Taḥrīm, verse 6:

قُوۡۤ ا   اَنۡفُسَکُمۡ    وَ  اَہۡلِیۡکُمۡ   نَارًا

Save yourselves and your family from the fire.

[Kanz-ul-Īmān (Translation of Quran)] (Part 28, Sūraĥ At-Taḥrīm, verse 6)

In the commentary of this verse, ‘Allāmaĥ Jalāluddīn Suyūṭī Shāfi’ī عَـلَيْهِ رَحْـمَةُ الـلّٰـهِ الۡـقَـوِی wrote in Tafsīr Ad-Dur-rul-Manšūr that Sayyidunā ‘Alī-ul-Murtaḍā, the lion of Allah کَـرَّمَ الـلّٰـهُ تَـعَـالٰی وَجۡـھَـهُ الۡـکَـرِیۡم said about this blessed verse, ‘This verse is instructing us to teach ourselves and our families about virtues and the manners of life.’

(Tafsīr Ad-Dur-rul-Manšūr, vol. 8, pp. 225)

A’lā Ḥaḍrat, Imām-e-Aĥl-e-Sunnat, scholar of Sharī’aĥ, guide of Ṭarīqaĥ, Ash-Shāĥ Imām Aḥmad Razā Khān عَـلَيْهِ رَحْمَةُ الـرَّحْمٰن explains a husband’s duties about his wife in Fatāwā Razawiyyaĥ: Providing her with living expenses (i.e. food and proper accommodation), paying Maĥr, treating her with good manners, teaching and emphasising good deeds, modesty and veiling, prohibiting and scaring her from the opposite of these, and encouraging her in good deeds.

(Fatāwā Razawiyyaĥ, vol. 24, pp. 371)

Regarding the issue of seeking the answer to a Shar’ī ruling, Baĥār-e-Sharī’at states: If a wife requires an answer about Shar’ī ruling, then she should ask her husband if he is a scholar. If he is not, then she should ask him to get the answer from a scholar for her. In these cases, she is not allowed to see a scholar herself, but if none of these cases exist, then she can visit a scholar.

(Baĥār-e-Sharī’at, part 7, pp. 99; ‘Ālamgīrī, vol. 1, pp. 341)