What does yukabbiru maʿa kulli ḥaṣāh mean in practice?

Book of Hajj: Return to Mina, Stoning the Three Jamarahs, and Days of Tashriq

• Say takbir only with the first pebble
• Say one takbir after all throws
• Say takbir only after the last Jamarah
• Say takbir with each individual pebble