Can the testimony of a children’s teacher be accepted?
Question

                Is it true that the testimony of teachers cannot be accepted? Why?.
Praise be to Allah.
    There is no basis for that. What has been narrated from some 
    about the testimony of a children’s teacher not being acceptable is to be 
    rejected. Teaching is something honourable, which raises a person in status. 
    The one who teaches people and guides them to good – the Lord, may He be 
    exalted, the angels and even the ant in its hole and the fish in the sea, 
    send blessings upon him. This is stated in a hadeeth narrated by al-Tirmidhi 
    and classed as saheeh by Shaykh al-Albaani in Saheeh al-Jaami’ 
    (4213). 

    The wording of the hadeeth is: “Allaah and His angels and the 
    inhabitants of the heavens and the earths, even the ant in its hole and the 
    fish in the sea send blessings upon the one who teaches people what is 
    good.” Narrated by al-Tirmidhi (2685). 

    Ibn Hajar al-Haytami (may Allaah have mercy on him) was 
    asked: 

    I saw a quotation from al-Khulaasah which said: “The 
    testimony of a children’s teacher is not to be accepted, for the minds of 
    eighty teachers are not equivalent to the mind of one woman.” Is this sound 
    and proven or not? What is the ruling on this issue? 

    He replied: 

    I looked for this text in al-Khulaasah by al-Ghazaali 
    and I could not find it there. I do not think it is in the books of any of 
    our companions, because it is more akin to nonsense. How many teachers of 
    children have we seen by whose virtue rain was sought because they attained 
    a high level of integrity, chastity, justice and righteousness. If these 
    words are proven to be narrated from a scholar, then they should be 
    understood as referring to a specific teacher in whom there are signs of 
    ignorance, wrongdoing or insanity, as is the case nowadays among those who 
    undertake this profession, which is the noblest of professions according to 
    the statement of the Prophet SAWS (peace and blessings of Allaah be upon 
    him). And Allaah knows best. 

    Al-Fataawa al-Fiqhiyyah al-Kubra 
    (4/358) 

    And Allaah knows best.