What is the ruling on the ma'mum standing up before the takbirat al-ihram?

The questioner : Is there any scriptural evidence for the worshippers standing in rows in preparation for prayer before the mu'adhdhin calls the iqamah? Your silence on this matter at al-Rajhi Mosque yesterday led one of the young men to say that the Shaykh's silence on it is evidence that there is a basis for this in the religion.

The Shaykh : Yes. Imam Malik (may Allah have mercy on him) was asked about this issue: When does the ma'mum stand up? Is it when he sees the imam, or when the iqamah begins, or when the mu'adhdhin says "Hayya 'ala al-salah," or when he says "Qad qamat al-salah," or when the imam says the takbir for the opening? He said, "The matter is broad in this; the matter is broad in this." And the Prophet (peace and blessings be upon him) said to his Companions: . Some scholars said that as soon as he sees the imam moving forward to the place of prayer, he should stand up. Others said he should not stand up until the iqamah begins, or when the mu'adhdhin says "Hayya 'ala al-salah," or when he says "Qad qamat al-salah," or when the imam says the takbir for the opening. And I hold that the matter is broad in this.
And if a person stands up at the beginning of the iqamah, or when he sees the imam, or when the mu'adhdhin says "Hayya 'ala al-salah," or when the iqamah is called, the matter is broad in this. However, the important thing is that he does not lag behind the takbirat al-ihram, based on the saying of the Prophet (peace and blessings be upon him):