Yawning Fissure — ruling 1

First the opponent whose turn it is — or, more likely, the first opponent to left of the player whose turn it is — chooses and announces which land they will sacrifice, then each other opponent in turn order does the same, then all lands are sacrificed at the same time.

Yawning Fissure : règles, fonctionnement et interactions (MTG)

Yawning Fissure is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Each opponent sacrifices a land of their choice.

How it works : Yawning Fissure

Original English text — Wizards of the Coast / Scryfall

#1October 1, 2009· Wizards of the Coast
First the opponent whose turn it is — or, more likely, the first opponent to left of the player whose turn it is — chooses and announces which land they will sacrifice, then each other opponent in turn order does the same, then all lands are sacrificed at the same time.
No other card is named in this ruling.