If I miss saying takbir-e-tashrik (which is Wajib) after farz prayer during 9th Zilhajj then what do I do?

Answer

If you miss saying Takbīr-e-Tashrīk (الله أكبر الله أكبر لا إله إلا الله والله أكبر الله أكبر ولله الحمد) after a farḍ prayer on 9th Dhul-Ḥijjah (or any day of Tashrīq), the following ruling applies according to the Ḥanafī school:

1. If you remember before the next farḍ prayer (or within a short time while still in the mosque or at home), you should immediately recite the Takbīr. It is not necessary to repeat the prayer or perform sajdah sahw.

2. If you remember after the time of the next farḍ prayer has begun (e.g., you forgot after Ẓuhr and only remember after ‘Aṣr has started), then no qaḍā’ (make-up) is required. The obligation for that particular Takbīr is considered expired, and you are not sinful if the omission was due to forgetfulness. However, if you deliberately omitted it, you should repent and seek forgiveness, as it is Wājib (necessary).

3. After the days of Tashrīq (13th Dhul-Ḥijjah ‘Aṣr) have passed, there is no way to make up any missed Takbīrs. They are time-specific acts tied to the farḍ prayers of those days.

Key References from Ḥanafī Sources:

• Radd al-Muḥtār (Ibn ‘Ābidīn):

  “If one forgets the Takbīr, he should recite it when he remembers, as long as the time for that particular farḍ prayer has not ended. If he remembers after the next farḍ has arrived, it is not made up.”
  (Radd al-Muḥtār, Kitāb al-Ṣalāh, Bāb al-Takbīr al-Tashrīq)

• Fatāwā Hindiyyah (al-‘Ālamgīriyyah):

  “Takbīr-e-Tashrīk is Wājib after every farḍ prayer from Fajr of 9th Dhul-Ḥijjah to ‘Aṣr of 13th Dhul-Ḥijjah. If one forgets, he should recite it when he remembers. If he remembers after the next farḍ, it is not incumbent upon him.”
  (Fatāwā Hindiyyah, 1/158)

• Imdād al-Fatāwā (Mufti Muhammad Shafi‘):

  “If a person misses Takbīr-e-Tashrīk, he is not required to make it up because it is a separate Wājib that has a specific time. However, if he remembers within the same session, he should recite it.”
  (Imdād al-Fatāwā, 1/245)

• Bahishtī Zewar (Mawlānā Ashraf ‘Alī Thānwī):

  “Takbīr-e-Tashrīk is Wājib. If you forget, you should say it as soon as you remember. But if you remember after the next prayer, it is not necessary.”
  (Bahishtī Zewar, Part 2, Chapter on Takbīr-e-Tashrīk)

Summary for Your Situation (9th Dhul-Ḥijjah):

• Recite the Takbīr immediately upon remembering, provided the next farḍ prayer has not yet entered (e.g., if you missed it after Ẓuhr, say it before ‘Aṣr time).
• If the next farḍ time has already begun, you do not need to say it – there is no qaḍā’.
• Make a habit of reciting it aloud (men) or softly (women) right after the farḍ prayer to avoid forgetting.

And Allāh knows best.